An Efficient Way to Produce a Nano Composite of Al 2024 T3 Reinforced by Multi-Walled Carbon Nano Tubes

Abstract

The main objective of this study is to evaluate the effect of incorporating Carbon Nanotubes (CNTs) into electroplating and electroless plating processes on the mechanical properties of aluminum alloy 2024 T3. The experimental approach involved adding pure Multi-Walled Carbon Nanotubes (MWCNTs) at a ratio of 2 g/L during the Ni-CNT coating process. Electroplating and electroless plating processes were applied to the specimens under specific conditions, including current, voltage, mixing speed, and temperature for both types of coating used. Both electroplating and electroless plating, with the addition of carbon nanotubes, resulted in significant improvements in various mechanical properties. The coated specimens showed improved tensile strength, elongation, Young's modulus, yield stress, toughness, and ultimate tensile stress. Hardness tests showed a 57% increase in the electroplated specimen and a 72% increase in the electroless plated specimen. Moreover, Young's modulus increased by 37.5% and 50% for electroplating and electroless plating, respectively, compared to the uncoated specimens. This study contributes to the field by investigating the effect of carbon nanotubes on both electroplating and electroless plating methods, specifically regarding the enhancement of mechanical properties in 2024 T3 aluminum alloy. The examination of two distinct coating processes and their effects on material performance through nanotube incorporation adds original insights to the existing knowledge.